The metal-clad semiconductor nanoring laser and its scaling properties.

We proposed a metal-clad semiconductor nanoring laser structure that exhibited a superior scaling properties for D/λ(0) > 0.5 where D is the device diameter. We theoretically analyzed the metal-cald nanoring laser and compared its scaling properties with two other similar nanolaser structures. We found that the two design parameters, namely the ring width and the ring diameter, enable independent emission wavelength control from device dimension. This property in combination with other desirable features including in-plane out-coupling and monolithic integration make the metal-clad nanoring laser highly attractive for photonic integration.